21822

21,822 is an even composite number composed of three prime numbers multiplied together.

What does the number 21822 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

21822 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 21822:

2 × 3 × 3637

See below for interesting mathematical facts about the number 21822 from the Numbermatics database.


Names of 21822

  • Cardinal: 21822 can be written as Twenty-one thousand, eight hundred twenty-two.

Scientific notation

  • Scientific notation: 2.1822 × 104

Factors of 21822

  • Number of distinct prime factors ω(n): 3
  • Total number of prime factors Ω(n): 3
  • Sum of prime factors: 3642

Divisors of 21822

  • Number of divisors d(n): 8
  • Complete list of divisors:
  • Sum of all divisors σ(n): 43656
  • Sum of proper divisors (its aliquot sum) s(n): 21834
  • 21822 is an abundant number, because the sum of its proper divisors (21834) is greater than itself. Its abundance is 12

Bases of 21822

  • Binary: 1010101001111102
  • Hexadecimal: 0x553E
  • Base-36: GU6

Squares and roots of 21822

  • 21822 squared (218222) is 476199684
  • 21822 cubed (218223) is 10391629504248
  • The square root of 21822 is 147.7227132163
  • The cube root of 21822 is 27.9446184235

Scales and comparisons

How big is 21822?
  • 21,822 seconds is equal to 6 hours, 3 minutes, 42 seconds.
  • To count from 1 to 21,822 would take you about six hours.

    This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

  • A cube with a volume of 21822 cubic inches would be around 2.3 feet tall.

Recreational maths with 21822

  • 21822 backwards is 22812
  • The number of decimal digits it has is: 5
  • The sum of 21822's digits is 15
  • More coming soon!

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"Number 21822 - Facts about the integer". Numbermatics.com. 2024. Web. 1 March 2024.

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Numbermatics. (2024). Number 21822 - Facts about the integer. Retrieved 1 March 2024, from https://numbermatics.com/n/21822/

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Numbermatics. 2024. "Number 21822 - Facts about the integer". https://numbermatics.com/n/21822/

The information we have on file for 21822 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

Keywords: Divisors of 21822, math, Factors of 21822, curriculum, school, college, exams, university, Prime factorization of 21822, STEM, science, technology, engineering, physics, economics, calculator, twenty-one thousand, eight hundred twenty-two.

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